CN107615623A - Bus bar unit and the electric rotating machine for possessing the bus bar unit - Google Patents
Bus bar unit and the electric rotating machine for possessing the bus bar unit Download PDFInfo
- Publication number
- CN107615623A CN107615623A CN201580079703.0A CN201580079703A CN107615623A CN 107615623 A CN107615623 A CN 107615623A CN 201580079703 A CN201580079703 A CN 201580079703A CN 107615623 A CN107615623 A CN 107615623A
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- China
- Prior art keywords
- busbar
- stator
- bus bar
- keeper
- bar unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000463 material Substances 0.000 claims abstract description 17
- 239000012212 insulator Substances 0.000 claims description 54
- 230000002093 peripheral effect Effects 0.000 claims description 33
- 230000005611 electricity Effects 0.000 claims description 9
- 210000000078 claw Anatomy 0.000 description 13
- 239000011347 resin Substances 0.000 description 13
- 229920005989 resin Polymers 0.000 description 13
- 238000010276 construction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
- H01R25/161—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Bus bar unit (110) includes:Busbar (50), it is used to be powered to the coil (43) for being wrapped in stator (40);And busbar keeper (111), it is used to keep busbar (50), and is formed by Ins. ulative material.Busbar keeper (111) has the engaged part (112) that can be fastened with holding section (122), and the holding section (122) is formed at from stator (40) along the extended portion (121) of the axially extending setting of stator (40).
Description
Technical field
The present invention relates to bus bar unit and the electric rotating machine for possessing the bus bar unit.
Background technology
A kind of coil supply electricity for being used for each phase from portion of terminal to stator is disclosed in Japanese JP2013-212008A
The bus bar unit of stream.The bus bar unit includes:Multiple busbars, it is used to supply electric current to each coil of stator;And
Busbar base, it keeps these busbars with radially separated state of these busbars in stator.
Busbar base includes:Main part, it is annular shape, has the endless groove for being used for accommodating multiple busbars;And
Extended portion, to be multiple, the outer circumference end of the extended portion main body is stretched out and has engaging teat on its top for it.It is logical
The engaging recessed part that the engaging teat of each extended portion is sticked in stator side using snap-fitted is crossed, so as to by bus bar unit
It is installed on stator.
In the conventional technology, because the extended portion formed with engaging teat is located at bus bar unit side, because
This, is correspondingly set the diameter of extended portion according to the external diameter of the component of the stator side engaged using snap-fitted
For the diameter more than busbar base.Therefore, the radial dimension of bus bar unit is made to maximize.
The content of the invention
It is an object of the present invention to provide a kind of bus bar unit that can minimize radial dimension and possess this and conflux
The electric rotating machine of bar unit.
According to the present invention a technical scheme, a kind of bus bar unit, wherein, the bus bar unit includes:Busbar,
It is used for the coil electricity for being wrapped in stator;And busbar keeper, it is used to keep busbar, and by Ins. ulative material
Formed, busbar keeper has the engaged part that can be fastened with holding section, and the holding section is formed at from stator along stator
The extended portion of axially extending setting.
In addition, according to the present invention another technical scheme, a kind of bus bar unit, wherein, the bus bar unit includes:
Busbar, it is used for the coil electricity for being wrapped in stator;And busbar keeper, it is used to keep busbar, and by exhausted
Edge material is formed, and busbar keeper has:Extended portion, it is towards stator along the axially extending setting of stator;And
Holding section, its by from extended portion along stator it is circumferentially prominent in a manner of formed and can mutually block with the engaged part of stator
Close.
Brief description of the drawings
Fig. 1 is the sectional view of the motor for the bus bar unit for possessing the 1st embodiment of the present invention.
Fig. 2 is the stereogram of the bus bar unit of the 1st embodiment of the present invention.
Fig. 3 is the sectional view of the motor for the bus bar unit for possessing the 2nd embodiment of the present invention.
Fig. 4 is the stereogram of the bus bar unit of the 2nd embodiment of the present invention.
Fig. 5 is the sectional view of the motor for the bus bar unit for possessing the 3rd embodiment of the present invention.
Fig. 6 is the stereogram of the bus bar unit of the 3rd embodiment of the present invention.
Fig. 7 is the sectional view of the motor for the bus bar unit for possessing the 4th embodiment of the present invention.
Fig. 8 is the stereogram of the bus bar unit of the 4th embodiment of the present invention.
Fig. 9 is the sectional view of the motor for the bus bar unit for possessing the 5th embodiment of the present invention.
Figure 10 is the stereogram of the bus bar unit of the 5th embodiment of the present invention.
Embodiment
Hereinafter, embodiments of the present invention are explained with reference to.
First, the 1st embodiment is illustrated.
Fig. 1 is the sectional view of the motor 100 for the bus bar unit 110 for being equipped with present embodiment.Fig. 2 is this embodiment party
The stereogram of the bus bar unit 110 of formula.In addition, in the following description, the rotation direction of principal axis of motor 100 is referred to as " axle
To ", the radiation direction centered on the rotary shaft of motor 100 is referred to as " radial direction ", by around the rotary shaft of motor 100
Direction is referred to as " circumference ".
Motor 100 as electric rotating machine is 3 phases (U phases, V phases, W phases) ac motor, and it for example can apply to car
Driven steering device etc..Motor 100 includes:Motor field frame 10, it is metal system;Motor cover 20, it covers
Lid is arranged on the opening portion of motor field frame 10, and is formed by insulative resin material;Rotor 30, it is contained in motor field frame
It is to rotate in 10 and by motor field frame 10 and the e axle supporting of motor cover 20;And stator 40, it is located at motor field frame
10 inner peripheral surface and having between the periphery of rotor 30 predetermined configures in the periphery of rotor 30 with gap.
Motor field frame 10 has:Cylinder portion 11, it is cylindrical shape;Bottom 12, it is used for the one end for closing cylinder portion 11;And
Open end 13, it is ring-type and formed around the opening portion of the other end for being opened on a portion 11.
Motor cover 20 is anchored on the open end 13 of motor field frame 10 using multiple bolts (not shown).Utilize sealing
Ring 21 will seal between motor cover 20 and motor field frame 10.
Rotor 30 has:Armature spindle 31, its by rotate it is free in a manner of be supported on motor field frame 10;And rotor core
32, armature spindle 31 is accommodated and configured at predetermined intervals in the circumferential axially through the rotor core 32 and the rotor core 32
Multiple magnets (permanent magnet).
One side of armature spindle 31 is supported on the bottom 12 of motor field frame 10 by bearing 33, the armature spindle 31 it is another
Side is supported on motor cover 20 by bearing 34.Thus, rotor 30 is supported to rotate freely centered on central axis O.
Stator 40 has:Stator core 41, it is located at the inner side of motor field frame 10;And stator coil 42, in circumference
Gamut in be provided with multiple stator coils 42 in stator core 41 at predetermined intervals.
Stator core 41 is formed by magnetic material, and it passes through axially stacked multiple with diametrically with radiated entends
Multiple teeth portion 41a steel plate and formed.Stator core 41 is embedded in the inner circumferential of motor field frame 10 to fix by its periphery
In motor field frame 10.
Stator coil 42 includes:Insulator 120, it is each teeth portion 41a that are multiple and surrounding stator core 41, and by insulating
Property resin material is formed;And the magnet coil 43 as coil, its to be multiple, and by across each insulator volume 120 in teeth portion
41a wire rod is formed.Gap quilt of the end of the wire rod 44 of magnet coil 43 between bus bar unit 110 and insulator 120
It is retracted to the outside of stator coil 42.
Motor 100 also includes bus bar unit 110, and it is in parallel in the axial direction with stator coil 42 and sets.
Bus bar unit 110 includes:Busbar 50, it is multiple and for leading to the magnet coil 43 being wrapped in stator 40
Electricity, and the busbar 50 is formed by conductive material;And busbar keeper 111, busbar 50 is maintained at internal by it, and should
Busbar keeper 111 is formed by insulative resin material.
Busbar keeper 111 is formed using insulative resin material in a manner of insert molding.That is, in manufacture busbar
During unit 110, each busbar 50 is disposed in mould (omit illustrate), backward mould in inject insulative resin material,
So as to form busbar keeper 111.Each busbar 50 is maintained at busbar holding in a manner of separated on axially or radially
The inside of part 111.
Multiple busbars 50 include four corresponding with U phases, V phases, W phases, neutral point respectively busbars 50.With each phase phase
The busbar 50 of corresponding tabular has:Arc-shaped conductive part 51, it extends to the arc-shaped centered on central axis O;For
Electricity use terminal 52, and it is multiple and from the 51 radially projecting setting of arc-shaped conductive part;And busbar terminal 53, it is one
And axially protrude setting from arc-shaped conductive part 51.
Protruded with each mutually corresponding multiple power supplies with terminal 52 from the periphery of busbar keeper 111.With AC power
Three busbar terminals 53 being connected protrude from one end of busbar keeper 111.
Busbar keeper 111 has block positioning step portion 112 protruded from outer peripheral face, as engaged part.
Outer peripheral face of the positioning step portion 112 along busbar keeper 111 is configured with three at substantially equal intervals in the circumferential.To converging
When stream bar keeper 111 is molded, positioning step portion 112 utilizes the bodily form of resin material one together with busbar keeper 111
Into.In addition, positioning step portion 112 is not limited to three, more than three can also be provided with.
Each positioning step portion 112 is set in a manner of the power supply relative to each busbar 50 is offset in the circumferential with terminal 52
Put, so as to not overlapping in the axial direction with terminal 52 with the power supply of each busbar 50.Thus, extend and with confluxing from magnet coil 43
The wire rod 44 that the power supply terminal 52 of bar 50 is connected will not interference with positioning step portion 112.
In addition, the outer peripheral face in each positioning step portion 112 includes:Protrusion 113, it is located at circumferential both sides and swelled;And
Recess 114, it configures between protrusion 113 and is recessed than protrusion 113.
The outer circumference end direction that insulator 120 has the axial end by the side of bus bar unit 110 of self-insulating body 120 is confluxed
Bar unit 110 axially extends the extended portion 121 of setting.Extended portion 121 is with can be with busbar keeper 111
The mode that positioning step portion 112 fastens circumferentially is configured with three at substantially equal intervals.By the circumference of extended portion 121
On width be set as it is roughly equal with the width of the recess in positioning step portion 112 114.The outer peripheral face of extended portion 121 with
Mode in the absence of step between the outer peripheral face of insulator 120 is extended.On the top of extended portion 121 formed with work
For the claw 122 of the holding section protruded towards the inner circumferential side of extended portion 121.
Multiple extended portions 121 of insulator 120 are sticked in positioning step portion respectively by using snap-fitted
112, so that busbar keeper 111 positions relative to stator coil 42.That is, it is fixed by the way that extended portion 121 is embedded in
Position stage portion 112 recess 114 and by claw 122 engaging in positioning step portion 112 so that busbar keeper 111 is in footpath
Positioned to in circumference relative to stator coil 42.Thus, by busbar keeper 111 configure with the identical of stator coil 42
Predetermined rotation position is maintained on axis and by busbar keeper 111.
When assembling motor 100, assemble and converge in stator coil 42 after stator core 41 assembles stator coil 42
Flow bar unit 110.Now, the wire rod 44 of each magnet coil 43 is from the outer of the openend of insulator 120 and busbar keeper 111
Gap between Zhou Duan is extended, and respective top ends are welded in the power supply terminal 52 of each busbar 50.
Then, after stator 40 is assembled in into motor field frame 10, motor cover 20 is assembled in motor field frame 10.This
When, the three busbar terminals 53 protruded from one end of busbar keeper 111 run through each hole of motor cover 20.
Binding post 55 is provided with motor cover 20, the binding post 55 is connected to and each mutually corresponding electric wire 54.
After motor cover 20 is fastened on motor field frame 10, each busbar terminal 53 is welded in one end of each binding post 55.
When motor 100 works, supply and drive to each magnet coil 43 by electric wire 54, binding post 55, busbar 50
Streaming current, rotate rotor 30 using in magnetic force caused by stator core 41.
Using the embodiment of the above, effect as shown below is played.
It will be sticked in certainly located at the positioning step portion 112 of the outer peripheral face of busbar keeper 111 by using snap-fitted
Insulator 120 axially extends the extended portion 121 of setting, so as to which busbar keeper 111 is installed on into insulator 120.
It therefore, there is no need to set extended portion 121 on busbar keeper 111.Thus, with being provided with busbar keeper 111
Extended portion 121 simultaneously makes the construction phase that the outer peripheral face of extended portion 121 and insulator 120 fastens using snap-fitted
Than the minor diameter of busbar keeper 111 can be made.Therefore, it is possible to minimize the radial dimension of bus bar unit 110.
Next, the 2nd embodiment of explanation.
Fig. 3 is the sectional view of the motor 200 for the bus bar unit 210 for being equipped with present embodiment.Fig. 4 is this embodiment party
The stereogram of the bus bar unit 210 of formula.In the following description, by with being said centered on the 1st embodiment difference
It is bright, omitted the description for marking identical reference with the identical structure of motor 200 of the 1st embodiment.
In the present embodiment, the construction and the 1st for making busbar keeper 211 and insulator 220 fasten is implemented
Mode is different.
The busbar keeper 211 of present embodiment does not have the positioning step portion 112 of the 1st embodiment.Insulator 220
With the axial end from the side of bus bar unit 210 and it is positioned against bus bar unit 210 than the outer circumferential side of magnet coil 43 certainly
Axially extend the extended portion 221 of setting.Extended portion 221 is circumferentially configured with three at substantially equal intervals.
The top of extended portion 221 is formed with the teat 222 inner circumferential side protrusion, as holding section towards extended portion 221.
The axial dimension from the side by insulator 220 untill teat 222 of extended portion 221 is set as keeping with busbar
The axial dimension of part 211 is roughly equal.
Multiple extended portions 221 of insulator 220 are sticked in busbar keeper 211 by using snap-fitted
, the part that the end face of that side opposite with insulator 220 intersects with the outer peripheral face of busbar keeper 211 in the axial direction
In the corner 212 as engaged part so that busbar keeper 211 positions relative to stator coil 42.That is, by
Busbar keeper 211 makes the teat 222 of extended portion 221 be sticked in busbar guarantor in the state of being connected to insulator 220
The corner 212 of gripping member 211, positioned so that busbar keeper 211 is diametrically opposed in stator coil 42.Thus, will converge
Stream bar keeper 211 configure with the identical axis of stator coil 42.
In addition, in the present embodiment, without the structure for positioning busbar keeper 211 in the circumferential, but also may be used
To be, such as it is configured to:Multiple protrusions are provided with the corner 212 of busbar keeper 211, make the prominent of extended portion 221
Portion 222 is entrenched between the protrusion.Thereby, it is possible to which busbar keeper 211 is positioned in the circumferential, so as to conflux
Bar keeper 211 is maintained at predetermined rotation position.
Using the embodiment of the above, effect as shown below is played.
The teat 222 that self-insulating body 220 is axially extended to the extended portion 221 of setting by using snap-fitted blocks
Together in the corner 212 of busbar keeper 211, so as to which busbar keeper 211 is installed on into insulator 220.It therefore, there is no need to
Extended portion 221 is provided with busbar keeper 211.Thus, with being provided with extended portion 221 in busbar keeper 211
And extended portion 221 is set to make busbar compared with the construction that the outer peripheral face of insulator 220 fastens using snap-fitted
The minor diameter of keeper 211.Therefore, it is possible to minimize the radial dimension of bus bar unit 210.
Also, the teat of the extended portion 221 due to self-insulating body 220 to be axially extended to setting using snap-fitted
222 are sticked in the corner 212 of busbar keeper 211, therefore, there is no need in order that busbar keeper 211 and insulator 220
Fasten and special structure is set in busbar keeper 211.It is used to be molded busbar keeper 211 therefore, it is possible to simplify
Mould shape, thus tend to carry out resin shaping and reduce the manufacturing cost of busbar keeper 211 and can improve
Quality.
Next, the 3rd embodiment of explanation.
Fig. 5 is the sectional view of the motor 300 for the bus bar unit 310 for being equipped with present embodiment.Fig. 6 is this embodiment party
The stereogram of the bus bar unit 310 of formula.In the following description, by with being said centered on the 1st embodiment difference
It is bright, omitted the description for marking identical reference with the identical structure of motor 300 of the 1st embodiment.
In the present embodiment, the construction and the 1st for making busbar keeper 311 and insulator 320 fasten is implemented
Mode is different.
The busbar keeper 311 of present embodiment does not have the positioning step portion 112 of the 1st embodiment, and in periphery
There is the recess 312 as engaged part on face.Outer peripheral face of the recess 312 along busbar keeper 311 is in the circumferential substantially
Equally spaced it is configured with three.In addition, recess 312 is not limited to three, more than three can also be provided with.
Insulator 320 has the axial end from the side of bus bar unit 310 and than the position court of the outer circumferential side of magnet coil 43
The extended portion 321 of setting is axially extended to bus bar unit 310.Extended portion 321 with busbar keeper 311
The corresponding mode of recess 312 be circumferentially configured with three at substantially equal intervals.By the axial dimension of extended portion 321
It is set as roughly equal with the axial dimension of busbar keeper 311.Inner peripheral surface in extended portion 321 prolongs formed with direction
Stretch the teat 322 inner circumferential side protrusion, as holding section of setting unit 321.Teat 322 is set as to keep with busbar
The size that the recess 312 of part 311 fastens.
Multiple extended portions 321 of insulator 320 are sticked in recess 312 respectively by using snap-fitted, so as to
Busbar keeper 311 is set to be positioned relative to stator coil 42.That is, it is recessed by the way that the teat 322 of extended portion 321 is embedded in
Portion 312, so that busbar keeper 311 positions on radially and circumferentially relative to stator coil 42.Thus, busbar is protected
Gripping member 311 is configured with being maintained at predetermined rotation position on the identical axis of stator coil 42 and by busbar keeper 311.
Using the embodiment of the above, effect as shown below is played.
Self-insulating body will be sticked in by using snap-fitted located at the recess 312 of the outer peripheral face of busbar keeper 311
320 axially extend the teat 322 of the extended portion 321 of setting, so as to which busbar keeper 311 is installed on into insulator
320.It therefore, there is no need to be provided with extended portion 321 in busbar keeper 311.Thus, with being set in busbar keeper 311
There are extended portion 321 and the construction phase for making the outer peripheral face of extended portion 321 and insulator 320 fasten using snap-fitted
Than the minor diameter of busbar keeper 311 can be made.Therefore, it is possible to minimize the radial dimension of bus bar unit 310.
Also, because the top of the extended portion 321 of insulator 320 is not more electronic than leaning on for busbar keeper 311
The end face of cover side is prominent to the side of motor cover 20, therefore, bus bar unit 310 is being contained in motor field frame 10 and incited somebody to action
When motor cover 20 is assembled in motor field frame 10, the contact surface between bus bar unit 310 and motor cover 20 can be increased
Product.Thus, with make as the 2nd embodiment bus bar unit 310 in the circumferential three at be contacted with the feelings of motor cover 20
Condition is compared, and can more reliably suppress rocking for bus bar unit 310.
Next, the 4th embodiment of explanation.
Fig. 7 is the sectional view of the motor 400 for the bus bar unit 410 for being equipped with present embodiment.Fig. 8 is this embodiment party
The stereogram of the bus bar unit 410 of formula.
In the present embodiment, the construction and the 1st for making busbar keeper 411 and insulator 420 fasten is implemented
Mode is different.In addition, in the following description, the rotation direction of principal axis of motor 400 is referred to as " axial direction ", will be with motor 400
Rotary shaft centered on radiation direction be referred to as " radial direction ", will around motor 400 rotary shaft direction referred to as " circumference ".
Motor 400 is 3 phases (U phases, V phases, W phases) ac motor, and it for example can apply to electric-powered turn of vehicle
To device etc..Motor 400 includes:Motor field frame 10, it is metal system;Motor cover 20, its covering are arranged at motor
The opening portion of housing 10, and formed by insulative resin material;Rotor 30, it is contained in motor field frame 10 and by motor
Housing 10 and the e axle supporting of motor cover 20 and can rotate;And stator 40, its be located at the inner peripheral surface of motor field frame 10 and with
Rotor 30 has predetermined configure with gap in the periphery of rotor 30.
Motor field frame 10 has:Cylinder portion 11, it is cylindrical shape;Bottom 12, it is used for the one end for closing cylinder portion 11;And
Open end 13, it is ring-type and formed around the opening portion of the other end for being opened on a portion 11.
Motor cover 20 is anchored on the open end 13 of motor field frame 10 using multiple bolts (not shown).Utilize sealing
Ring 21 will seal between motor cover 20 and motor field frame 10.
Rotor 30 has:Armature spindle 31, its by rotate it is free in a manner of be supported on motor field frame 10;And rotor core
32, armature spindle 31 is accommodated and configured at predetermined intervals in the circumferential axially through the rotor core 32 and the rotor core 32
Multiple magnets (permanent magnet).
One side of armature spindle 31 is supported on the bottom 12 of motor field frame 10, the other end of the armature spindle 31 by bearing
Side is supported on motor cover 20 by bearing.Thus, rotor 30 is supported to rotate freely centered on central axis O.
Stator 40 has:Stator core 41, it is located at the inner side of motor field frame 10;And stator coil 42, in circumference
Gamut in be provided with multiple stator coils 42 in stator core 41 at predetermined intervals.
Stator core 41 is formed by magnetic material, and it passes through axially stacked multiple with diametrically with radiated entends
Multiple teeth portion 41a steel plate and formed.Stator core 41 is embedded in the inner circumferential of motor field frame 10 to fix by its periphery
In motor field frame 10.
Stator coil 42 includes:Insulator 420, it is each teeth portion 41a that are multiple and surrounding stator core 41, and by insulating
Property resin material is formed;And magnet coil 43, it is multiple, and by across each insulator wire rod 44 of volume 420 in teeth portion 41a
Formed.Gap of the end of the wire rod 44 of magnet coil 43 between bus bar unit 410 and insulator 420 is extracted to stator
The outside of coil 42.
Motor 400 also includes bus bar unit 410, and it is in parallel in the axial direction with stator coil 42 and sets.
Bus bar unit 410 includes:Busbar 50, it is multiple and for leading to the magnet coil 43 being wrapped in stator 40
Electricity, and the busbar 50 is formed by conductive material;And busbar keeper 411, busbar 50 is maintained at internal by it, and should
Busbar keeper 411 is formed by insulative resin material.
Busbar keeper 411 is formed using insulative resin material in a manner of insert molding.That is, in manufacture busbar
During unit 410, each busbar 50 is disposed in mould (omit illustrate), backward mould in inject insulative resin material,
So as to form busbar keeper 411.Each busbar 50 is maintained at busbar holding in a manner of separated on axially or radially
The inside of part 411.
Multiple busbars 50 include four corresponding with U phases, V phases, W phases, neutral point respectively busbars 50.With each phase phase
The busbar 50 of corresponding tabular has:Arc-shaped conductive part 51, it extends to the arc-shaped centered on central axis O;For
Electricity use terminal 52, and it is multiple and from the 51 radially projecting setting of arc-shaped conductive part;And busbar terminal 53, it is one
And axially protrude setting from arc-shaped conductive part 51.The busbar 50 of the tabular corresponding with neutral point has:Arc-shaped is led
Electric portion 51, it extends to the arc-shaped centered on central axis O;And terminal 52 use in power supply, it is multiple and from arc-shaped
Conductive part 51 is radially projecting to be set and will be connected between the magnet coil 43 of each phase.
Protruded with each mutually corresponding multiple power supplies with terminal 52 from the periphery of busbar keeper 411.With AC power
Three busbar terminals 53 being connected protrude from one end of busbar keeper 411.
It is extended that there is busbar keeper 411 prominent from outer peripheral face and with stator coil 42 outer peripheral face to fasten
Portion 412.Outer peripheral face of the extended portion 412 along busbar keeper 411 is configured with three at substantially equal intervals in the circumferential.
When being molded to busbar keeper 411, extended portion 412 utilizes resin material together with busbar keeper 411
It is integrally formed.In addition, extended portion 412 is not limited to three, more than three can also be provided with.
Each extended portion 412 is set in a manner of the power supply relative to each busbar 50 is offset in the circumferential with terminal 52
Put, so as to not overlapping in the axial direction with terminal 52 with the power supply of each busbar 50.Thus, extend from magnet coil 43 and with remittance
The wire rod 44 that the power supply terminal 52 of stream bar 50 is connected will not interference with extended portion 412.
Extended portion 412 has:Base end part 413, it is radially projecting from outer peripheral face;And top ends 414, it is from base
End 413 bends and extended vertically to the place side of stator coil 42.The base end part 413 of extended portion 412 is protected from busbar
The end face by the side of stator coil 42 of gripping member 411 extended in a manner of not producing step and be connected to insulator 420 by confluxing
The end face of bar cell side.The top ends 414 of extended portion 412 are sticked in and formed exhausted from the top bending of base end part 413
The engaged part 421 of the periphery of edge body 420.
Top ends 414 in extended portion 412 are provided with claw be protrudedly formed to circumferential both sides, as holding section
415 and form breach 416 between claw 415 in the top end of top ends 414.By by multiple extended portions 412
Top ends 414 are sticked in the engaged part 421 of the periphery of insulator 420, so that busbar keeper 411 is sticked in stator line
Circle 42.
In the periphery of insulator 420 formed with the engaged part that can be fastened with the top ends 414 of extended portion 412
421.Engaged part 421 in a manner of it can be fastened with the top ends 414 of extended portion 412 circumferentially substantially at equal intervals
Ground is configured with three.Engaged part 421 has:Recess 422, it is formed in a manner of the outer peripheral face depression of self-insulating body 420;With
And engaging portion 423, it is formed at the week for being less than recess 422 by the side of busbar keeper 411 and circumferential width of recess 422
To width.By the circumferential width of engaging portion 423 be set as it is roughly equal with the width of the top ends of extended portion 412 414 and
Formation less than top ends 414 has the width of the part of claw 415.
The top ends 414 of extended portion 412 are sticked in engaging portion 423 respectively by using snap-fitted, so that
Busbar keeper 411 positions relative to stator coil 42.Now, by the claw for the top ends 414 for making extended portion 412
415 one side are bent while being axially moveable, so that claw 415 extends axially through engaging portion 423 to the side of breach 416.
That is, by the way that the top ends 414 of extended portion 421 are embedded in into engaging portion 423 and by claw 415 engaging in locking
Portion 423, so that busbar keeper 411 positions on radially and circumferentially relative to stator coil 42.Thus, busbar is protected
Gripping member 411 is configured with being maintained at predetermined rotation position on the identical axis of stator coil 42 and by busbar keeper 411.
When assembling motor 400, assembled in the over-assemble of stator core 41 after stator coil 42 in stator coil 42
Bus bar unit 410.Now, the wire rod 44 of each magnet coil 43 is from the openend of insulator 420 and busbar keeper 411
Gap between outer circumference end is extended, and respective top ends 414 are welded in the power supply terminal 52 of each busbar 50.
Then, after stator 40 is assembled in into motor field frame 10, motor cover 20 is assembled in motor field frame 10.This
When, the three busbar terminals 53 protruded from one end of busbar keeper 411 run through each hole of motor cover 20.
Binding post 55 is provided with motor cover 20, the binding post 55 is connected to and each mutually corresponding electric wire 54.
After motor field frame 10 has linked motor cover 20, each busbar terminal 53 is welded in one end of each binding post 55.
When motor 400 works, supply and drive to each magnet coil 43 by electric wire 54, binding post 55, busbar 50
Streaming current, rotate rotor 30 using in magnetic force caused by stator core 41.
Using the embodiment of the above, effect as shown below is played.
Because the extension that is formed at busbar keeper 411 and can be fastened with the engaged part 421 of stator coil 42 is set
The claw 415 for putting the top ends 414 in portion 412 is formed in a manner of circumferentially protruding, therefore, with making claw 415 from top ends 414
To outer peripheral side or inner circumferential side protrude situation compare, can minimize busbar keeper 411.Therefore, it is possible to make busbar
The radial dimension miniaturization of unit 410.
Also, because claw 415 is prominent to inner circumferential side without the recess 422 of self-insulating body 420, therefore, it is possible to not make absolutely
Increase the number of turn or increase coil diameter of magnet coil 43 ever-larger diameterses of edge body 420.Therefore, it is possible to improve motor 400
Performance.
Next, the 5th embodiment of explanation.
Fig. 9 is the sectional view of the motor 500 for the bus bar unit 510 for being equipped with present embodiment.Figure 10 is this implementation
The stereogram of the bus bar unit 510 of mode.In the following description, by with being carried out centered on the 4th embodiment difference
Illustrate, omitted the description for marking identical reference with the identical structure of motor 500 of the 4th embodiment.
In the present embodiment, the construction and the 4th for making busbar keeper 511 and insulator 520 fasten is implemented
Mode is different.
Top ends 513 in the extended portion 512 of busbar keeper 511, which are provided with to circumferential both sides, to be protrudedly formed
, teat 514 as holding section.By the way that the top ends 513 of multiple extended portions 512 are sticked in into the outer of insulator 520
The engaged part 521 in week, so that busbar keeper 511 is sticked in stator coil 42.
In the periphery of insulator 520 formed with the engaged part 521 that can be fastened with the top of extended portion 512.Quilt
Holding section 521 is circumferentially configured at substantially equal intervals in a manner of it can be fastened with the top ends 513 of extended portion 512
There are three.Engaged part 521 has:Recess 522, it is formed in a manner of the outer peripheral face depression of self-insulating body 520;It is and locking
Portion 523, it is formed at the peripheral width for being more than recess 522 by the side of busbar keeper 511 and circumferential width of recess 522
Degree.The shape of engaging portion 523 is set as to the shape similar to the teat of the top ends of extended portion 512 513 514.
The top ends 513 of extended portion 512 are sticked in engaging portion 523 respectively by using snap-fitted, so that
Busbar keeper 511 positions relative to stator coil 42.Now, one side of top ends 513 of extended portion 512 is made to radially
Outside is bent while be axially moveable and the teat 514 of top ends 513 and engaging portion 523 is matched, afterwards can be by teat
514 insertion engaging portions 523.As long as in addition, the shape that the shape of teat 514 is similar to the shape of engaging portion 523, teat
514 shape can be the arbitrary shape including semicircle, rectangle etc..
Thus, busbar keeper 511 is made to be positioned on radially and circumferentially relative to stator coil 42, so as to by busbar
Keeper 511 is configured with being maintained at predetermined rotation position on the identical axis of stator coil 42 and by busbar keeper 511
Put.
Using the embodiment of the above, effect as shown below is played.
Because the extension that is formed at busbar keeper 511 and can be fastened with the engaged part 521 of stator coil 42 is set
The teat 514 for putting the top ends 513 in portion 512 is circumferentially protrudedly formed, therefore, with making teat 514 from top ends 513 to periphery
The situation that side or inner circumferential side protrude is compared, and can minimize busbar keeper 511.Therefore, it is possible to make bus bar unit 510
Radial dimension miniaturization.
Also, because teat 514 is prominent to inner circumferential side without the recess 522 of self-insulating body 520, therefore, it is possible to not make absolutely
Increase the number of turn or increase coil diameter of magnet coil 43 ever-larger diameterses of edge body 520.Therefore, it is possible to improve motor 500
Performance.
This concludes the description of embodiments of the present invention, but the embodiment show only the present invention application examples it
One, it is not the meaning for the concrete structure that protection scope of the present invention is defined in the embodiment.
For example, in the 1st embodiment, the positioning step portion 112 of busbar keeper 111 is located at busbar keeper
111 outer circumferential side, but the positioning step portion 112 of busbar keeper 111 can also be located to the inner circumferential of busbar keeper 111
Side.In this case, as long as the extended portion that positioning step portion 112 can be sticked in by snap-fitted by insulator 120
121 are similarly located at inner circumferential side.
Also, in the 1st embodiment, make positioning step portion 112 integrally formed with busbar keeper 111, but position
Stage portion 112 can also be relative to the independent component of busbar keeper 111.
Also, in the 2nd embodiment, exemplified with using snap-fitted by multiple extended portions 221 of insulator 220
It is sticked in busbar keeper 211, the in the axial direction end face of that side opposite with insulator 220 and busbar keeper
The situation in the corner 212 for the part that 211 outer peripheral face intersects is but it is also possible to be using snap-fitted by the more of insulator 220
Individual extended portion 221 is sticked in busbar keeper 211, that side opposite with insulator 220 in the axial direction end face
The corner of the part to be intersected with the inner peripheral surface of busbar keeper 211.In this case, as long as so that insulator 220 prolongs
The mode for stretching inner circumferential side extension of the setting unit 221 along busbar keeper 211 sets extended portion 221.
Also, in the 3rd embodiment, exemplified with the dashing forward the extended portion 321 of insulator 320 using snap-fitted
Portion 322 is sticked in situation about being formed in the recess 312 of the outer peripheral face of busbar keeper 211, but can also be formed recess
The inner peripheral surface of busbar keeper 211.In this case, as long as so that the extended portion 321 of insulator 320 is along insulator
The mode of 320 inner peripheral surface extension configures extended portion 321 and makes teat 322 with towards the outer circumferential side of extended portion 321
Prominent mode is formed.
Also, in the 4th embodiment, make the claw 415 of extended portion 412 prominent to circumferential both sides, but can also
It is that any one direction for making the claw 415 of extended portion 412 only into circumferential both sides is prominent.
Also, in the 4th embodiment and the 5th embodiment, make the extended portion of busbar keeper 411,511
412nd, 512 it is sticked in be formed in the engaged part 421,521 of the outer peripheral face of insulator 420,520, but engaged part can also be made
421st, 521 inner peripheral surface for being formed at insulator 420,520.In this case, as long as the extension of busbar keeper 411,511 is set
Portion 412,512 is put to be formed in a manner of the inner peripheral surface extension along insulator 420,520.
Moreover, in all embodiments, exemplified with 100~motor of motor that power is produced using electric power
500, but the embodiment can also be applied to the generator using power generation electric power.
Also, in said embodiment, exemplified with bus bar unit 110,210,310,410,510 as following,
That is, the busbar 50 of the bus bar unit 110,210,310,410,510 is to be punched the conductive member of tabular with preset width
Into the circumferential shape along stator 40, the structure that is formed, each busbar 50 are spaced apart predetermined compartment of terrain stacking in the axial direction,
But alternatively, can also be bus bar unit as following:The busbar of bus bar unit is to lead linear banding
Electric components are bent upwards in thickness of slab side and are formed as the structure along the circumferential shape of stator 40, by for each busbar
Change diameter, multiple busbars can be accommodated in respectively in insulation keeper.
Claims (9)
1. a kind of bus bar unit, wherein,
The bus bar unit includes:
Busbar, it is used for the coil electricity for being wrapped in stator;And
Busbar keeper, it is used to keep the busbar, and is formed by Ins. ulative material,
The busbar keeper has the engaged part that can be fastened with holding section, and the holding section is formed at from the stator edge
The extended portion of the axially extending setting of the stator.
2. bus bar unit according to claim 1, wherein,
The engaged part is formed at the outer circumferential side of the busbar keeper.
3. bus bar unit according to claim 2, wherein,
The holding section is formed in a manner of prominent to the inner circumferential side of the extended portion,
The engaged part is the end face with that opposite side of the stator and the institute in the axial direction of the busbar keeper
State the corner for the part that the outer peripheral face of busbar keeper intersects.
4. bus bar unit according to claim 2, wherein,
The holding section is formed in a manner of prominent to the inner circumferential side of the extended portion,
The engaged part is formed at the recess of the outer peripheral face of the busbar keeper.
5. a kind of electric rotating machine, wherein,
The electric rotating machine possesses:
Rotor, it is to rotate by e axle supporting;
Stator, there is predetermined configure with gap in the periphery of the rotor between the stator and the rotor;And
The bus bar unit described in claim 1, the bus bar unit is with the stator in the axial direction of the stator
It is in parallel and set,
The stator includes:
Stator core, it has in the stator radially with multiple teeth portion of radiated entends;
Insulator, it surrounds the teeth portion;And
The coil, it is located at the teeth portion across insulator volume,
The extended portion and the holding section are formed at the insulator.
6. a kind of bus bar unit, wherein,
The bus bar unit includes:
Busbar, it is used for the coil electricity for being wrapped in stator;And
Busbar keeper, it is used to keep the busbar, and is formed by Ins. ulative material,
The busbar keeper has:
Extended portion, it is towards the stator along the axially extending setting of the stator;And
Holding section, its by from the extended portion along the stator it is circumferentially prominent in a manner of formed and can be with the stator
Engaged part fasten.
7. bus bar unit according to claim 6, wherein,
Formed on the top of the extended portion it is jagged,
The holding section is protrudedly formed in a manner of clipping the breach to the circumferential both sides of the stator,
By making the holding section be bent to the notch side, so that the holding section is sticked in the described by card of the stator
Conjunction portion.
8. bus bar unit according to claim 6, wherein,
By make radial outside from the extended portion to the stator bend so that the holding section be sticked in it is described fixed
The engaged part of son.
9. a kind of electric rotating machine, wherein,
The electric rotating machine possesses:
Rotor, it is to rotate by e axle supporting;
Stator, have between the stator and the rotor and configure with gap in the periphery of the rotor;And
The bus bar unit described in claim 6, the bus bar unit is with the stator in the axial direction of the stator
It is in parallel and set,
The stator includes:
Stator core, it has in the stator radially with multiple teeth portion of radiated entends;
Insulator, it surrounds the teeth portion;And
The coil, it is located at the teeth portion across insulator volume,
The engaged part is formed at the insulator.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2015/070864 WO2017013772A1 (en) | 2015-07-22 | 2015-07-22 | Busbar unit and rotating electrical motor comprising same |
Publications (1)
Publication Number | Publication Date |
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CN107615623A true CN107615623A (en) | 2018-01-19 |
Family
ID=57834085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201580079703.0A Pending CN107615623A (en) | 2015-07-22 | 2015-07-22 | Bus bar unit and the electric rotating machine for possessing the bus bar unit |
Country Status (3)
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US (1) | US10840656B2 (en) |
CN (1) | CN107615623A (en) |
WO (1) | WO2017013772A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2019068506A (en) * | 2017-09-28 | 2019-04-25 | 日本電産株式会社 | Bus bar unit and motor |
JP6988331B2 (en) * | 2017-09-28 | 2022-01-05 | 日本電産株式会社 | Manufacturing method of bus bar unit, motor and bus bar unit |
JP7155518B2 (en) * | 2017-12-21 | 2022-10-19 | 日本電産トーソク株式会社 | electric oil pump |
CN107968510B (en) * | 2017-12-29 | 2024-06-18 | 重庆超力高科技股份有限公司 | Brushless Motor |
JP6728279B2 (en) * | 2018-07-24 | 2020-07-22 | 本田技研工業株式会社 | Busbar unit |
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Also Published As
Publication number | Publication date |
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WO2017013772A1 (en) | 2017-01-26 |
US10840656B2 (en) | 2020-11-17 |
US20180175570A1 (en) | 2018-06-21 |
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